Your network contains an Active Directory domain.
The network contains a standalone server that runs Windows Server 2008 R2.
You need to configure the server as a DHCP Relay Agent.
What should you do first?
A.
Join the server to the domain.
B.
Configure the server to use a dynamic IP address.
C.
Install the Health Registration Authority (HRA) role service on the server.
D.
Install the Routing and Remote Access service (RRAS) role service on the server.